If the device manager is telling you the device can't be started it should also give you an error code or more info. If not, check the event log.
Most of these problems can be traced by entering the error codes in google (groups.google.com). Try entering the full error code description or number.
Otherwise fill the motherboard model in google;
"USB device cannot start
"
[edit]
A first try in google (USB device cannot start Microstar)
gave this
Granted it doesn't seem to give a sollution, but you're not alone.
By giving the error code I'm sure we can find a sollution. After all, that's the why error codes exist.
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